Granted Patent
Utility
US 5,160,322 · App. 07/852,360
Occlusive chest sealing valve
Inventors:
William Scheremet, Martin van Buren
Patented Case
View Patent ↗
Granted: Nov 3, 1992
Filed: Mar 17, 1992
Inventors
William Scheremet
Martin van Buren
Assignee (at issue)
Brunswick Biomedical Technologies, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.